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Old September 27, 2011, 04:49 PM   #1
brmfan
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Odd RL-15 experience

So I decided to try out RL-15 instead of my usual Varget for a possible match load (.308 175 SMK, CCI BR-2, Lapua case, 2600 fps). I noticed after a few shots that instead of the sharp 'pop' muzzle blast sound I am used to hearing when using Varget, it was more of a slightly drawn out 'phht' kinda sound. Velocity and accuracy were spot on, but something just seemed different. Am I imagining things or has anyone else ever noticed something similar with RL-15?
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Old September 27, 2011, 05:08 PM   #2
Doodlebugger45
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I also switched over from Varget to RL-15, but I can't say I have noticed anything different about the sound.
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Old September 27, 2011, 05:20 PM   #3
Brian Pfleuger
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I can't speak directly to the difference between Varget and RL-15, but every time I try different powders in any gun the muzzle blast is different.

The most dramatic switch I've seen is between H380 and IMR3031 in my 15" Encore. H380 has a tremendous concussive blast and a flash so bright it's clearly visible in direct sunlight. 3031 has far less concusion and no visible blast. This is with otherwise identical components.

Last edited by Brian Pfleuger; September 28, 2011 at 10:18 AM.
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Old September 28, 2011, 03:55 AM   #4
HiBC
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pop or pphhtt they are both excellent recipes.I do not have the software peetzakilla has,but you may find the Re-15 has a 100% burn and the Varget has a 97% burn in the bbl.Just a guess.
Were you shooting at the same range/firing point? Echo/accoustcs?
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Old September 28, 2011, 10:12 AM   #5
farmall
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I can tell the difference in muzzle blast between various powders also when testing loads.

Strangest thing I have noticed about RL15 is that in 220 Swift, all other things being equal, RL15 will consistently stretch cases less.

Andy
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Old September 29, 2011, 07:03 PM   #6
brmfan
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HiBC: Same range, same rifle.
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